a combination of allowing the rates on high earners to go back up to what they were under president clinton, and reducing the value of tax deductions and other tax benefits that they get. before i get to how much can be raised by the second, let me just say the president is very, very supportive of curbing tax deductions for high-income households. it's been a part of his plan from his very first budget. in fact, he was and remains the only major leaguer in washington that has put forward a specific, explicit plan that would limit those tax benefits for high-income households that's been examined by the joint committee on taxation, which is the official referee for these issues in congress. that plan, though, doesn't raise the revenue that you need. so out of the president's $1.6 trillion, $950 billion comes from decoupling. decoupling is the high-income rates going away, the middle- class tax cuts becoming permanent. that gets you $950 billion of revenue. the question is could you plausibly replace that revenue just by limiting tax expenditures. there have been lots of different ideas out